Mechanism for converting motion



(No Model.)

W. W. BORDEN.

MEGHANISM POR GONVERTINGMOTION.

.Patented Deo. 5, 1882.

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N. PETERS, Phomumugnpher. wnshingten. D. c

' y Nrrnn STATES PATENT 'A Fries.

WILLIAM W. `BORDEN, OFSAN LUIS REY, CALIFORNIA.

MECHANlS-M FOR CONVERTINGVIOTION.

SPECIFICATION forming part of Letters Patent No. 268,611, dated December 5, 18,82,

Application led June 27, 1882. (No model.)

4simple and etlicient substitute for cranks.

To that end my invention consists in mechanism which combines a ratchet-wheel with a double rack fitted for oscillation for engaging the wheel at opposite sides in succession, as

hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a side elevation of my improved mechanism. Fig. 2 is a longitudinal section of the same on line ww, Fig. 1. Fig. 3 is a cross-section on line 3/ y of Fig. 1. Fig. 4 is a longitudinal section of the mechanism con- 'structed in double form for obtaining a movement in either direction. Fig. 5 is a plan view ofthe mechanism as arranged for obtaining a,

reciprocating movement from a rotary movement; Figli, a side view of the shifting weight.

rlhe shaft to which a rotary motion is to be given is shown at a., and on this shaft is a wheel, Z, that is formed with ratchet-teeth on oneside of its rim.

c c are the racks, connected together at their ends and formed on their side next the wheel b with ratchet-teeth for engaging the ratchetteeth ofthe wheel; but the teeth of the racks are placed in reverse, so that one rack-en gages by a movement in one direction and the other by movement in the opposite direction.

To the rack-frame are connected longitudinal rods d d, passing above and below a hub, c, on shafta, so as to support the racks upon the said hub. The outer portion of the hub e is made as a rectangular frame,f, thatis hung shaft.

by horizontal pivots c', to allow the rack-frame to oscillate transversely on the hub e and on an axis which is in the plane of the axis of the rIo one end of the rack-frame is connected a rod, g, by which power is applied for reciprocating the rack-frame, and the connection ot this rod will be such as to allow the oscillating movement ot' the4 rack. A spiral spring, h, is placed on the shaft c between the hub e and the Wheel b for the purpose ot' relieving the shock of the oscillations of the rackframe'.

In operation, the reciprocating movement being given to the racks by the movement in one direction, the lower rack en gages-the ratchet-wheel and gives rotation thereto, the other rack slipping freely over the teeth of the wheel, and by the pressure thereon causing the rackframeto oscillate so that theteeth that arein position for engaging the wheel are moved into engagement therewith fully, as illustrated in Fig. 3. On the return movement the rack is oscillated in the other direction, and the other rack engages, thereby continuing the rotation in the same direction as before. i

The device shown in Fig. 4 is the same mechanism in double form, and arranged so that the direction of revolution given to the ratchet-wheel may be reversed. rIhere are two ratchet-wheels, b b, and the racks c are made with ratchet-teeth upon both faces, and the racks work between the two wheels b. The lever t' is connected to the shaft" ce and fitted for moving the shaft endwise, thereby carrying either of the ratchet-wheels into engagement with the racks, according to the direction of revolution it is desired to obtain.

The device shown in Fig. 5 consists of a ratchet-wheel, as before described, and racks c c, the rack-frame being hung on a rock-shaft d in the frame of the machine. l l are cams placed for contact with the ends of the rackframe at its extremes of movement, so as to give the required oscillating movement to the racks for shiftin g them in relation to the ratchet-wheel. With thisformotmechanism,power being applied to revolve the ratchet-wheels, the rack is given the reciprocating movement. To insure the connection of the opposite rack with the wheel in casethe teeth do not coincide when the cam acts, I provide the shiftingweight r. (ShowninFig.5anddetailFig.6.) Thisweight is pivoted for lateral movement, and, being shifted from one side t'o the other by the cams, serves to hold the rack against the wheel, so that the teeth shall connect at the rst movement of the wheel. `Suitable stops are provided to limit the swing ot' the weight.

I am aware that rectangular motion has been stantially as shown and described, for operaconvertcd into circular motion, and the reverse, by means of two racks of teeth on a frame having an axis parallel to the axis of a wheel operatedupon by said racks alternately and by other similar devices,\and I do not claim such, broadly; but

What I claim, and wish to secure by Letters Patent, isA

l. The combination, with the ratchet-wheel b, having teeth upon one of its faces, of the two racks c, attached to .one face of a frame, which oscillates on a pivot which would intersect the axis of the Wheel b, it' extended, as shown and described.

2. The combination of the lratchet-'Wheel b, racks c c, the pivoted frame f, and .hub e, subtion as set forth. f 3. The combination, with the frame provided with two racks of teeth, c, oscillating on an axis lying between said racks parallel to their plane, of two ratchet-wheels, b, and their shaft a, adjustable endwise, as shown and described.

4. The combination, with two bars connected together, provided with reverse ratchetteeth, and fitted to oscillate their plane upon an axis parallel thereto. with a single ratchet- `wheel and a balance-weight, as shown and described. A

WM. WEBSTER BORDEN. Witnesses: t

FRANK PETERsoN, M. KELLY. 

